Journal
CYTOGENETIC AND GENOME RESEARCH
Volume 105, Issue 2-4, Pages 375-384Publisher
KARGER
DOI: 10.1159/000078210
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Thirty years after its identification, the model of chromosomal speciation in Mus musculus domesticus is reevaluated using the methods of population biology, molecular cytogenetics and functional genomics. Three main points are considered: ( 1) the structural predisposition of M. m. domesticus chromosomes to Robertsonian fusion; ( 2) the impediment of structural heterozygosity to gene flow between populations of mice with karyotypes rearranged by Robertsonian fusion and between them and populations with the standard all-acrocentric 40-chromosome karyotype; ( 3) the selective advantage of chromosomal novelty, essential for the attainment of homozygosis and the rapid fixation of the new karyotype in the population. Copyright (C) 2004 S. Karger AG, Basel.
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